:root {
  --ink: #1D2B31;
  --ink-soft: #56656C;
  --ink-faint: #8B979C;
  --paper: #EFEDE4;
  --paper-raised: #FAF9F3;
  --paper-sunken: #E4E1D5;
  --line: #D2CDBC;
  --line-strong: #B7B29E;
  --accent: #D95A24;
  --accent-ink: #FFFFFF;
  --accent-tint: #F3DCC9;
  --blue: #2B6E8E;
  --blue-tint: #D9E7ED;
  --good: #3E7A52;
  --danger: #A83C32;
  --shadow: 0 1px 0 rgba(29,43,49,0.06);
  --focus: #2B6E8E;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #ECE8DC;
    --ink-soft: #AEA99A;
    --ink-faint: #737065;
    --paper: #171E20;
    --paper-raised: #1F2729;
    --paper-sunken: #101617;
    --line: #303A3C;
    --line-strong: #435052;
    --accent: #F0793B;
    --accent-ink: #171E20;
    --accent-tint: #3A2A20;
    --blue: #79B4D1;
    --blue-tint: #1D3038;
    --good: #74B389;
    --danger: #E08479;
    --shadow: 0 1px 0 rgba(0,0,0,0.3);
    --focus: #79B4D1;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --ink: #ECE8DC;
  --ink-soft: #AEA99A;
  --ink-faint: #737065;
  --paper: #171E20;
  --paper-raised: #1F2729;
  --paper-sunken: #101617;
  --line: #303A3C;
  --line-strong: #435052;
  --accent: #F0793B;
  --accent-ink: #171E20;
  --accent-tint: #3A2A20;
  --blue: #79B4D1;
  --blue-tint: #1D3038;
  --good: #74B389;
  --danger: #E08479;
  --shadow: 0 1px 0 rgba(0,0,0,0.3);
  --focus: #79B4D1;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  padding-inline: 24px;
}
@media (min-width: 780px) { body { padding-inline: 48px; } }

a { color: var(--blue); }
h1, h2, h3 { font-family: "Big Shoulders Display", "Arial Narrow", sans-serif; text-transform: uppercase; text-wrap: balance; margin: 0; color: var(--ink); letter-spacing: 0.01em; }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }
.eyebrow { font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 600; }
.max { max-width: 1180px; margin-inline: auto; }
.narrow { max-width: 700px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
button { font-family: inherit; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- nav ---------- */
.site-nav {
  max-width: 1180px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 22px;
  flex-wrap: wrap;
}
.wordmark { font-family: "Big Shoulders Display", sans-serif; font-weight: 900; font-size: 1.5rem; text-transform: uppercase; letter-spacing: 0.01em; display: flex; align-items: center; gap: 8px; }
.wordmark .tick { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-size: 0.94rem; font-weight: 500; }
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 18px; }
.nav-cta > a.text-link { color: var(--ink-soft); text-decoration: none; font-size: 0.94rem; font-weight: 500; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 3px; padding: 12px 22px; font-weight: 600; font-size: 0.95rem; text-decoration: none; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: var(--paper-sunken); }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }

@media (max-width: 640px) { .nav-links { display: none; } }

/* ---------- hero ---------- */
.hero {
  max-width: 1180px;
  margin-inline: auto;
  padding-block: 28px 64px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 900px) { .hero { grid-template-columns: 1fr; gap: 40px; } }

.hero-copy h1 { font-size: clamp(2.5rem, 5.2vw, 3.8rem); line-height: 0.98; margin-block: 14px 20px; }
.hero-copy h1 em { font-style: normal; color: var(--accent); }
.hero-sub { font-size: 1.1rem; color: var(--ink-soft); max-width: 46ch; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 28px; flex-wrap: wrap; }
.hero-note { font-size: 0.85rem; color: var(--ink-faint); }

/* ---------- live demo card ---------- */
.demo-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 40px -22px rgba(29,43,49,0.35);
  overflow: hidden;
}
.demo-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
  background: repeating-linear-gradient(135deg, transparent, transparent 7px, var(--paper-sunken) 7px, var(--paper-sunken) 8px);
}
.demo-head .name { font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; letter-spacing: 0.06em; color: var(--ink-soft); text-transform: uppercase; }
.demo-head .live { display: flex; align-items: center; gap: 6px; font-size: 0.72rem; color: var(--good); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.live .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--good); display: inline-block; }

.demo-body { padding: 20px; display: flex; flex-direction: column; gap: 18px; }
.demo-row { display: flex; flex-direction: column; gap: 8px; }
.demo-row .row-label { font-size: 0.78rem; font-weight: 600; color: var(--ink-soft); letter-spacing: 0.03em; text-transform: uppercase; }
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.86rem; font-weight: 500;
  padding: 9px 14px; border-radius: 20px;
  border: 1px solid var(--line-strong); background: var(--paper);
  color: var(--ink); cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--ink); color: var(--paper-raised); border-color: var(--ink); }
.chip:disabled { opacity: 0.4; cursor: not-allowed; text-decoration: line-through; }
.chip .delta { font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; opacity: 0.7; margin-left: 4px; }

.demo-note { font-size: 0.8rem; color: var(--danger); min-height: 1.2em; }

.demo-foot {
  border-top: 1px dashed var(--line-strong);
  padding: 16px 20px;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 12px;
  background: var(--paper-sunken);
}
.part-block .row-label { font-size: 0.72rem; color: var(--ink-soft); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
.part-number { font-family: "IBM Plex Mono", monospace; font-size: 1.25rem; font-weight: 600; letter-spacing: 0.02em; }
.price-block { text-align: right; }
.price-total { font-family: "IBM Plex Mono", monospace; font-size: 1.7rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.price-sub { font-size: 0.72rem; color: var(--ink-soft); }

/* ---------- stats strip ---------- */
.stats-strip {
  max-width: 1180px; margin-inline: auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
  margin-block: 12px 80px;
}
@media (max-width: 720px) { .stats-strip { grid-template-columns: 1fr; } }
.stat { background: var(--paper-raised); padding: 26px 28px; }
.stat .symbol { font-family: "IBM Plex Mono", monospace; font-size: 1.9rem; font-weight: 600; color: var(--accent); }
.stat .label { font-size: 0.88rem; color: var(--ink-soft); margin-top: 4px; max-width: 32ch; }

/* ---------- section shell ---------- */
section.block { max-width: 1180px; margin-inline: auto; padding-block: 76px; border-top: 1px solid var(--line); }
.block-head { display: flex; flex-direction: column; gap: 12px; margin-bottom: 44px; }
.block-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
.block-head p { color: var(--ink-soft); max-width: 60ch; font-size: 1.02rem; }

/* ---------- positioning ---------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 760px) { .compare { grid-template-columns: 1fr; } }
.spec-card { border: 1px solid var(--line); border-radius: 8px; background: var(--paper-raised); overflow: hidden; }
.spec-card .tag { padding: 14px 20px; font-family: "IBM Plex Mono", monospace; font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; border-bottom: 1px solid var(--line); }
.spec-card.against .tag { color: var(--ink-soft); background: var(--paper-sunken); }
.spec-card.for .tag { color: var(--accent-ink); background: var(--accent); }
.spec-list { list-style: none; margin: 0; padding: 0; }
.spec-list li { display: flex; justify-content: space-between; gap: 16px; padding: 15px 20px; border-bottom: 1px solid var(--line); font-size: 0.94rem; }
.spec-list li:last-child { border-bottom: none; }
.spec-list .k { color: var(--ink-soft); }
.spec-list .v { font-weight: 600; text-align: right; }
.spec-card.against .v { color: var(--ink-soft); font-weight: 500; }

/* ---------- how it works ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 18px; border-top: 3px solid var(--line-strong); }
.step .num { font-family: "IBM Plex Mono", monospace; font-size: 0.85rem; color: var(--accent); font-weight: 600; }
.step h3 { font-size: 1.3rem; margin-block: 8px 8px; }
.step p { color: var(--ink-soft); font-size: 0.94rem; margin: 0; }

/* ---------- feature spec grid ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
@media (max-width: 760px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-cell { padding: 22px 26px; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 6px; background: var(--paper-raised); }
.feature-grid .feature-cell:nth-child(odd) { border-right: 1px solid var(--line); }
@media (max-width: 760px) { .feature-grid .feature-cell:nth-child(odd) { border-right: none; } }
.feature-cell .f-name { font-family: "IBM Plex Mono", monospace; font-size: 0.82rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--blue); font-weight: 600; }
.feature-cell .f-desc { font-size: 0.96rem; color: var(--ink); }

/* ---------- mockup showcase ---------- */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
@media (max-width: 860px) { .showcase { grid-template-columns: 1fr; } }
.browser { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--paper-raised); box-shadow: var(--shadow); }
.browser-bar { display: flex; align-items: center; gap: 6px; padding: 10px 12px; background: var(--paper-sunken); border-bottom: 1px solid var(--line); }
.browser-bar .dotb { width: 8px; height: 8px; border-radius: 50%; background: var(--line-strong); }
.browser-bar .url { margin-left: 10px; font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; color: var(--ink-faint); }
.browser-body { padding: 16px; }
.showcase-label { font-size: 0.82rem; color: var(--ink-soft); margin-top: 12px; text-align: center; }

.admin-row { display: grid; grid-template-columns: 20px 1fr 70px 26px; align-items: center; gap: 10px; padding: 10px 8px; border-radius: 4px; font-size: 0.85rem; }
.admin-row:nth-child(odd) { background: var(--paper-sunken); }
.admin-row .handle { color: var(--ink-faint); }
.admin-row .grp { border-left: 3px solid var(--blue); padding-left: 8px; }
.admin-row .type { font-family: "IBM Plex Mono", monospace; font-size: 0.72rem; color: var(--ink-soft); text-align: right; }
.admin-row .req { color: var(--accent); text-align: center; }

.wiz-progress { display: flex; gap: 4px; margin-bottom: 14px; }
.wiz-progress span { flex: 1; height: 4px; border-radius: 2px; background: var(--line-strong); }
.wiz-progress span.done { background: var(--accent); }
.wiz-title { font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 10px; }
.wiz-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.wiz-card { border: 1px solid var(--line-strong); border-radius: 6px; padding: 14px 10px; text-align: center; font-size: 0.84rem; }
.wiz-card.sel { border-color: var(--accent); background: var(--accent-tint); font-weight: 600; }
.wiz-sidebar { margin-top: 14px; border-top: 1px dashed var(--line-strong); padding-top: 12px; display: flex; justify-content: space-between; font-size: 0.82rem; }
.wiz-sidebar .mono { font-weight: 600; }

/* ---------- pricing ---------- */
.price-table { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 980px) { .price-table { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .price-table { grid-template-columns: 1fr; } }
.tier { border: 1px solid var(--line); border-radius: 8px; background: var(--paper-raised); display: flex; flex-direction: column; }
.tier.highlight { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.tier-head { padding: 22px 20px 18px; border-bottom: 1px solid var(--line); }
.tier-head .tier-name { font-family: "IBM Plex Mono", monospace; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); }
.tier-head .tier-price { font-size: 2.1rem; font-weight: 700; font-family: "IBM Plex Mono", monospace; margin-top: 6px; }
.tier-head .tier-price small { font-size: 0.85rem; font-weight: 500; color: var(--ink-soft); }
.tier-list { list-style: none; margin: 0; padding: 16px 20px; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.tier-list li { font-size: 0.88rem; color: var(--ink-soft); padding-left: 16px; position: relative; }
.tier-list li::before { content: "—"; position: absolute; left: 0; color: var(--accent); }
.tier-cta { padding: 18px 20px 22px; }
.tier-cta .btn { width: 100%; }
.price-note { font-size: 0.8rem; color: var(--ink-faint); margin-top: 18px; }

/* ---------- final cta ---------- */
.final-cta { max-width: 1180px; margin-inline: auto; padding-block: 70px; text-align: center; border-top: 1px solid var(--line); }
.final-cta h2 { font-size: clamp(2rem, 4vw, 3rem); }
.final-cta p { color: var(--ink-soft); max-width: 50ch; margin-inline: auto; margin-top: 12px; }
.final-cta .hero-actions { justify-content: center; margin-top: 26px; }

footer { max-width: 1180px; margin-inline: auto; padding-block: 40px 60px; border-top: 1px solid var(--line); }
.foot-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot-cols { display: flex; gap: 56px; flex-wrap: wrap; }
.foot-col h4 { font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 12px; font-weight: 600; }
.foot-col a { display: block; color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; margin-bottom: 9px; }
.foot-col a:hover { color: var(--ink); }
.foot-bottom { margin-top: 44px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 0.8rem; color: var(--ink-faint); }

/* ---------- legal pages (terms.html / privacy.html) ---------- */
.legal-doc { max-width: 760px; margin-inline: auto; padding-block: 20px 80px; }
.legal-doc h1 { font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: 8px; }
.legal-doc .updated { font-size: 0.85rem; color: var(--ink-faint); margin-bottom: 8px; }
.legal-doc .disclaimer {
  background: var(--accent-tint); border: 1px solid var(--accent);
  border-radius: 6px; padding: 14px 18px; font-size: 0.9rem; color: var(--ink);
  margin-block: 20px 40px;
}
.legal-doc h2 { font-size: 1.4rem; margin-block: 36px 12px; text-transform: none; }
.legal-doc p, .legal-doc li { font-size: 0.98rem; color: var(--ink-soft); }
.legal-doc ul { padding-left: 20px; }
.legal-doc li { margin-bottom: 8px; }
.legal-doc a { color: var(--blue); }